/**
 * FastTools - Modern Design System
 * Version 2.0 - Noviembre 2025
 */

/* ====================
   CSS VARIABLES
   ==================== */

:root {
  /* Primary Colors */
  --primary: #13a4ec;
  --primary-dark: #0e7bb8;
  --primary-light: #4db8f0;
  --primary-hover: #1090d3;
  
  /* Backgrounds */
  --bg-light: #f6f7f8;
  --bg-white: #ffffff;
  --bg-gray: #f3f4f6;
  
  /* Text Colors */
  --text-primary: #0d171b;
  --text-secondary: #4c809a;
  --text-muted: #6b7280;
  --text-white: #ffffff;
  
  /* Borders */
  --border-light: #e5e7eb;
  --border-medium: #d1d5db;
  --border-dark: #9ca3af;
  
  /* Status Colors */
  --success: #10b981;
  --warning: #f59e0b;
  --error: #ef4444;
  --info: #3b82f6;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);
  --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
  
  /* Typography */
  --font-display: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Courier New', monospace;
  
  /* Font Sizes */
  --text-xs: 0.75rem;      /* 12px */
  --text-sm: 0.875rem;     /* 14px */
  --text-base: 1rem;       /* 16px */
  --text-lg: 1.125rem;     /* 18px */
  --text-xl: 1.25rem;      /* 20px */
  --text-2xl: 1.5rem;      /* 24px */
  --text-3xl: 1.875rem;    /* 30px */
  --text-4xl: 2.25rem;     /* 36px */
  --text-5xl: 3rem;        /* 48px */
  --text-6xl: 3.75rem;     /* 60px */
  
  /* Font Weights */
  --font-normal: 400;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;
  --font-black: 900;
  
  /* Spacing */
  --spacing-xs: 0.25rem;   /* 4px */
  --spacing-sm: 0.5rem;    /* 8px */
  --spacing-md: 1rem;      /* 16px */
  --spacing-lg: 1.5rem;    /* 24px */
  --spacing-xl: 2rem;      /* 32px */
  --spacing-2xl: 3rem;     /* 48px */
  --spacing-3xl: 4rem;     /* 64px */
  --spacing-4xl: 6rem;     /* 96px */
  
  /* Border Radius */
  --radius-sm: 0.25rem;    /* 4px */
  --radius-md: 0.5rem;     /* 8px */
  --radius-lg: 0.75rem;    /* 12px */
  --radius-xl: 1rem;       /* 16px */
  --radius-2xl: 1.5rem;    /* 24px */
  --radius-full: 9999px;   /* Circular */
  
  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Z-Index */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
}

/* ====================
   BASE STYLES
   ==================== */

* {
  box-sizing: border-box;
}

body {
  font-family: var(--font-display);
  color: var(--text-primary);
  background-color: var(--bg-light);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

main {
  flex: 1;
}

/* ====================
   TYPOGRAPHY
   ==================== */

h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-bold);
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
}

h1 { font-size: var(--text-5xl); }
h2 { font-size: var(--text-4xl); }
h3 { font-size: var(--text-3xl); }
h4 { font-size: var(--text-2xl); }
h5 { font-size: var(--text-xl); }
h6 { font-size: var(--text-lg); }

p {
  margin-bottom: var(--spacing-md);
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--primary-dark);
}

/* ====================
   BUTTONS
   ==================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: var(--text-base);
  font-weight: var(--font-medium);
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
}

.btn-primary {
  background-color: var(--primary);
  color: var(--text-white);
}

.btn-primary:hover {
  background-color: var(--primary-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background-color: var(--bg-white);
  color: var(--text-primary);
  border: 1px solid var(--border-medium);
}

.btn-secondary:hover {
  border-color: var(--primary);
  color: var(--primary);
}

/* ====================
   CARDS
   ==================== */

.card {
  background-color: var(--bg-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  padding: var(--spacing-lg);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 0;
  background: linear-gradient(180deg, var(--primary), var(--primary-light));
  transition: height var(--transition-base);
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary-light);
}

.card:hover::before {
  height: 100%;
}

.card-body {
  position: relative;
  z-index: 1;
}

.card-title {
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.card-text {
  color: var(--text-secondary);
  font-size: var(--text-sm);
  line-height: 1.6;
  margin-bottom: var(--spacing-lg);
}

/* Tool Cards */
.tool-card {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  background-color: var(--bg-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  padding: var(--spacing-lg);
  transition: all var(--transition-base);
  height: 100%;
}

.tool-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary);
}

.tool-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(19, 164, 236, 0.1);
  color: var(--primary);
  border-radius: var(--radius-lg);
  font-size: var(--text-3xl);
  transition: all var(--transition-base);
}

.tool-card:hover .tool-icon {
  transform: scale(1.1);
  background-color: var(--primary);
  color: var(--text-white);
}

.tool-title {
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  color: var(--text-primary);
  margin: 0;
}

.tool-description {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  margin: 0;
  flex-grow: 1;
}

.tool-link {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  color: var(--primary);
  font-weight: var(--font-medium);
  font-size: var(--text-sm);
  text-decoration: none;
  transition: gap var(--transition-fast);
}

.tool-link:hover {
  gap: var(--spacing-sm);
}

/* ====================
   HERO SECTION
   ==================== */

.hero {
  background: linear-gradient(135deg, #0ea5e9 0%, #0284c7 50%, #0369a1 100%);
  color: white;
  padding: 5rem 0 6rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 20% 50%, rgba(255,255,255,0.1) 0%, transparent 50%);
  pointer-events: none;
}

.hero .container {
  position: relative;
  z-index: 1;
}

.hero h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 900;
  margin-bottom: 1.5rem;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.hero p.lead {
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  opacity: 0.95;
  max-width: 700px;
  margin: 0 auto 2rem;
  line-height: 1.6;
}

.hero .cta-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 2rem;
}

.hero .btn-hero {
  padding: 0.875rem 2rem;
  font-size: 1.1rem;
  font-weight: 600;
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.hero .btn-hero-primary {
  background: white;
  color: var(--primary);
  box-shadow: 0 4px 14px rgba(0,0,0,0.15);
}

.hero .btn-hero-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0,0,0,0.2);
  color: var(--primary-dark);
}

.hero .btn-hero-secondary {
  background: rgba(255,255,255,0.15);
  color: white;
  border: 2px solid rgba(255,255,255,0.3);
  backdrop-filter: blur(10px);
}

.hero .btn-hero-secondary:hover {
  background: rgba(255,255,255,0.25);
  border-color: rgba(255,255,255,0.5);
  transform: translateY(-2px);
}

.hero .alert {
  max-width: 700px;
  margin: 2rem auto 0;
  background: rgba(255,255,255,0.95);
  border: none;
  border-radius: var(--radius-lg);
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

/* ====================
   FEATURE CARDS
   ==================== */

.features-section {
  padding: 4rem 0;
  background: var(--bg-light);
}

.features-section h2 {
  text-align: center;
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 3rem;
  color: var(--text-primary);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.feature-card {
  background: white;
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  border: 1px solid var(--border-light);
  text-align: center;
}

.feature-card:hover {
  box-shadow: var(--shadow-xl);
  transform: translateY(-8px);
  border-color: var(--primary-light);
}

.feature-card .icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 1.5rem;
  background: linear-gradient(135deg, var(--primary-light), var(--primary));
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 2rem;
}

.feature-card .material-symbols-outlined {
  font-size: 2rem;
}

.feature-card h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.feature-card p {
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 0;
}

/* ====================
   GRID LAYOUTS
   ==================== */

.tool-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

/* ====================
   UTILITIES
   ==================== */

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-primary { color: var(--primary); }
.text-secondary { color: var(--text-secondary); }
.text-muted { color: var(--text-muted); }

.bg-white { background-color: var(--bg-white); }
.bg-light { background-color: var(--bg-light); }

.rounded { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-xl { border-radius: var(--radius-xl); }
.rounded-full { border-radius: var(--radius-full); }

.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }
.shadow-xl { box-shadow: var(--shadow-xl); }

/* ====================
   ANIMATIONS
   ==================== */

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

@keyframes bounce {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

.fade-in {
  animation: fadeIn 0.6s ease-out;
}

.fade-in-up {
  animation: fadeInUp 0.6s ease-out;
}

.scale-in {
  animation: scaleIn 0.4s ease-out;
}

.slide-in-left {
  animation: slideInLeft 0.5s ease-out;
}

.loading {
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* Stagger animations */
.stagger-1 { animation-delay: 0.1s; }
.stagger-2 { animation-delay: 0.2s; }
.stagger-3 { animation-delay: 0.3s; }
.stagger-4 { animation-delay: 0.4s; }
.stagger-5 { animation-delay: 0.5s; }
.stagger-6 { animation-delay: 0.6s; }

/* ====================
   NAVIGATION
   ==================== */

.navbar {
  background: var(--primary) !important;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
}

.navbar.scrolled {
  background: rgba(19, 164, 236, 0.95) !important;
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-lg);
}

.navbar-brand {
  font-weight: var(--font-bold);
  font-size: var(--text-xl);
  letter-spacing: -0.02em;
}

.nav-link {
  font-weight: var(--font-medium);
  transition: all var(--transition-fast);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: white;
  transition: all var(--transition-fast);
  transform: translateX(-50%);
}

.nav-link:hover::after {
  width: 80%;
}

/* ====================
   FOOTER
   ==================== */

footer {
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
  border-top: 1px solid var(--border-light);
  padding: 3rem 0 2rem;
  margin-top: 4rem;
}

footer .container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

footer a {
  color: var(--text-secondary);
  font-weight: var(--font-medium);
  transition: color var(--transition-fast);
}

footer a:hover {
  color: var(--primary);
}

/* ====================
   SECTIONS
   ==================== */

section h3 {
  font-size: var(--text-2xl);
  font-weight: var(--font-bold);
  color: var(--text-primary);
  margin-bottom: var(--spacing-lg);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

section h3::before {
  content: '';
  width: 4px;
  height: 28px;
  background: linear-gradient(180deg, var(--primary), var(--primary-light));
  border-radius: var(--radius-sm);
}

/* ====================
   RESPONSIVE
   ==================== */

@media (max-width: 768px) {
  .hero h1 {
    font-size: 2.5rem;
  }
  
  .hero p.lead {
    font-size: 1.1rem;
  }
  
  .hero .cta-buttons {
    flex-direction: column;
    width: 100%;
  }
  
  .hero .btn-hero {
    width: 100%;
    justify-content: center;
  }
  
  .tool-grid {
    grid-template-columns: 1fr;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .navbar-brand {
    font-size: var(--text-lg);
  }
}

/* ====================
   TOOL PAGES
   ==================== */

.tool-header {
  margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-lg);
  border-bottom: 2px solid var(--border-light);
}

.tool-header h1 {
  font-size: var(--text-3xl);
  font-weight: var(--font-bold);
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
}

.tool-header .text-muted {
  font-size: var(--text-base);
  color: var(--text-secondary);
}

/* Drop Zone */
.drop-zone {
  border: 2px dashed var(--border-medium);
  border-radius: var(--radius-lg);
  padding: var(--spacing-2xl);
  text-align: center;
  background: var(--bg-light);
  transition: all var(--transition-base);
  cursor: pointer;
}

.drop-zone:hover {
  border-color: var(--primary);
  background: rgba(19, 164, 236, 0.05);
}

.drop-zone.drag-over {
  border-color: var(--primary);
  background: rgba(19, 164, 236, 0.1);
  transform: scale(1.02);
}

.drop-message {
  color: var(--text-secondary);
  font-size: var(--text-base);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
}

/* Form Controls */
.form-control,
.form-select {
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--text-base);
  transition: all var(--transition-fast);
}

.form-control:focus,
.form-select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(19, 164, 236, 0.1);
  outline: none;
}

.input-group-text {
  background: var(--bg-light);
  border: 1px solid var(--border-medium);
  color: var(--text-secondary);
  font-weight: var(--font-medium);
}

/* Buttons in tool pages */
.btn {
  font-weight: var(--font-medium);
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.btn-primary {
  background: var(--primary);
  border: none;
  color: white;
}

.btn-primary:hover {
  background: var(--primary-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background: var(--bg-light);
  border: 1px solid var(--border-medium);
  color: var(--text-primary);
}

.btn-secondary:hover {
  background: var(--bg-white);
  border-color: var(--primary);
  color: var(--primary);
}

/* ====================
   TOAST NOTIFICATIONS
   ==================== */

.toast-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: var(--z-tooltip);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  pointer-events: none;
}

.toast {
  background: white;
  border-radius: var(--radius-lg);
  padding: var(--spacing-md) var(--spacing-lg);
  box-shadow: var(--shadow-xl);
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  min-width: 300px;
  max-width: 400px;
  pointer-events: all;
  animation: slideInRight 0.3s ease-out;
  border-left: 4px solid var(--primary);
}

.toast.success {
  border-left-color: var(--success);
}

.toast.error {
  border-left-color: var(--error);
}

.toast.warning {
  border-left-color: var(--warning);
}

.toast.info {
  border-left-color: var(--info);
}

.toast-icon {
  font-size: var(--text-2xl);
  flex-shrink: 0;
}

.toast.success .toast-icon { color: var(--success); }
.toast.error .toast-icon { color: var(--error); }
.toast.warning .toast-icon { color: var(--warning); }
.toast.info .toast-icon { color: var(--info); }

.toast-content {
  flex: 1;
}

.toast-title {
  font-weight: var(--font-semibold);
  color: var(--text-primary);
  margin-bottom: 2px;
}

.toast-message {
  font-size: var(--text-sm);
  color: var(--text-secondary);
}

.toast-close {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0;
  font-size: var(--text-xl);
  line-height: 1;
  transition: color var(--transition-fast);
}

.toast-close:hover {
  color: var(--text-primary);
}

@keyframes slideInRight {
  from {
    transform: translateX(400px);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

/* ====================
   PROGRESS INDICATORS
   ==================== */

.progress {
  height: 8px;
  background: var(--bg-light);
  border-radius: var(--radius-full);
  overflow: hidden;
  position: relative;
}

.progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  border-radius: var(--radius-full);
  transition: width var(--transition-base);
  position: relative;
  overflow: hidden;
}

.progress-bar::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.3),
    transparent
  );
  animation: shimmer 2s infinite;
}

@keyframes shimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

.spinner {
  width: 40px;
  height: 40px;
  border: 4px solid var(--bg-light);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.spinner-sm {
  width: 20px;
  height: 20px;
  border-width: 2px;
}

/* ====================
   ACCESSIBILITY
   ==================== */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

*:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* ====================
   MICRO-INTERACTIONS
   ==================== */

/* Smooth scroll */
html {
  scroll-behavior: smooth;
}

/* Link hover effect */
a:not(.btn) {
  position: relative;
  transition: color var(--transition-fast);
}

/* Button ripple effect */
.btn {
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.btn:active::after {
  width: 300px;
  height: 300px;
}

/* Card shine effect */
.card {
  position: relative;
  overflow: hidden;
}

.card::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(
    45deg,
    transparent 30%,
    rgba(255, 255, 255, 0.1) 50%,
    transparent 70%
  );
  transform: translateX(-100%);
  transition: transform 0.6s;
}

.card:hover::after {
  transform: translateX(100%);
}

/* Input focus glow */
.form-control:focus,
.form-select:focus {
  animation: inputGlow 0.3s ease-out;
}

@keyframes inputGlow {
  0% {
    box-shadow: 0 0 0 0 rgba(19, 164, 236, 0.4);
  }
  100% {
    box-shadow: 0 0 0 3px rgba(19, 164, 236, 0.1);
  }
}

/* Icon bounce on hover */
.material-symbols-outlined {
  transition: transform var(--transition-fast);
}

.btn:hover .material-symbols-outlined,
.card:hover .material-symbols-outlined {
  animation: bounce 0.6s ease-in-out;
}

/* Tooltip */
[data-tooltip] {
  position: relative;
  cursor: help;
}

[data-tooltip]::before {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(-8px);
  padding: var(--spacing-xs) var(--spacing-sm);
  background: var(--text-primary);
  color: white;
  font-size: var(--text-xs);
  white-space: nowrap;
  border-radius: var(--radius-sm);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}

[data-tooltip]:hover::before {
  opacity: 1;
  transform: translateX(-50%) translateY(-4px);
}

/* Skeleton loading */
.skeleton {
  background: linear-gradient(
    90deg,
    var(--bg-light) 25%,
    var(--bg-gray) 50%,
    var(--bg-light) 75%
  );
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s infinite;
  border-radius: var(--radius-md);
}

@keyframes skeleton-loading {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

/* Scroll reveal */
.scroll-reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.scroll-reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* Badge pulse */
.badge-pulse {
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* Floating animation */
.floating {
  animation: floating 3s ease-in-out infinite;
}

@keyframes floating {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

/* ====================
   SEO CONTENT SECTION
   ==================== */

.seo-content {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-2xl);
  margin-top: var(--spacing-2xl);
  box-shadow: var(--shadow-sm);
}

.seo-content h2 {
  font-size: var(--text-2xl);
  font-weight: var(--font-bold);
  color: var(--text-primary);
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-md);
  border-bottom: 2px solid var(--border-light);
}

.seo-content h3 {
  font-size: var(--text-xl);
  font-weight: var(--font-semibold);
  color: var(--text-primary);
  margin-top: var(--spacing-xl);
  margin-bottom: var(--spacing-md);
}

.seo-content p {
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-md);
}

.seo-content ol,
.seo-content ul {
  margin-bottom: var(--spacing-lg);
  padding-left: var(--spacing-xl);
}

.seo-content li {
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-sm);
}

.seo-content a {
  color: var(--primary);
  text-decoration: underline;
  text-decoration-color: rgba(19, 164, 236, 0.3);
  text-underline-offset: 2px;
  transition: all var(--transition-fast);
}

.seo-content a:hover {
  color: var(--primary-dark);
  text-decoration-color: var(--primary-dark);
}

.seo-content strong {
  font-weight: var(--font-semibold);
  color: var(--text-primary);
}

.seo-content .accordion {
  margin-top: var(--spacing-md);
}

.seo-content .accordion-item {
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-sm);
  overflow: hidden;
}

.seo-content .accordion-button {
  font-size: var(--text-base);
  font-weight: var(--font-medium);
  color: var(--text-primary);
  background: var(--bg-light);
  padding: var(--spacing-md) var(--spacing-lg);
}

.seo-content .accordion-button:not(.collapsed) {
  background: var(--primary);
  color: white;
}

.seo-content .accordion-button:focus {
  box-shadow: 0 0 0 3px rgba(19, 164, 236, 0.1);
}

.seo-content .accordion-body {
  padding: var(--spacing-lg);
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--text-secondary);
}

@media (max-width: 768px) {
  .seo-content {
    padding: var(--spacing-lg);
  }
  
  .seo-content h2 {
    font-size: var(--text-xl);
  }
  
  .seo-content h3 {
    font-size: var(--text-lg);
  }
}